University of Minnesota Combinatorics Seminar
2009-2010: Friday 3:35-4:25 in 570 Vincent Hall

date speaker affiliation title (possibly click for an abstract)
Fall Semester
September 18
Dennis Stanton Univ. of Minnesota Linearization formulas for orthogonal polynomials
September 25
Vic Reiner Univ. of Minnesota The diameter problem for reduced words and galleries
October 2
Adam Goyt Minnesota State - Moorhead Packing Patterns in Set Partitions
October 9
Jason Morton Stanford/Penn State Holographic algorithms without matchgates
October 16
Aminul Huq Univ. of Minnesota - Rochester Generalized Chung-Feller Theorems for lattice paths
October 23
Lauren Williams Univ. of California - Berkeley Tableaux combinatorics for the asymmetric exclusion process and Askey-Wilson polynomials
October 30
Alex Woo St. Olaf College Explicit Grobner bases for Schubert slices
November 6
Eric Sommers U. Mass - Amherst A survey of Robinson-Schensted algorithms in types B/C and their connections to Lie theory
November 13
Jia Huang Univ. of Minnesota Invariant theory of finite sparse linear groups
November 20
Ionut Ciocan-Fontanine Univ. of Minnesota An identity related to the quantum cohomology of the Hilbert scheme of n points in the complex plane
November 27
No seminar -- Thanksgiving break
December 4
Gregg Musiker MIT Positivity results for cluster algebras arising from surfaces
December 11
at 4:40pm
Pavlo Pylyavskyy Univ. of Michigan Total positivity in loop groups: Chevalley generators
*Note unusual time slot-- one hour later!*
December 18
No seminar -- final exams
Spring semester
January 22

Sami Assaf MIT Affine dual equivalence and k-Schur positivity
January 29
No seminar (organizer out-of-town)
February 5
Maria Axenovich Iowa State Univ. On graphs with forbidden induced subgraphs
- editing and structure
February 12
Vic Reiner Univ. of Minnesota A multivariate "maj" hook formula for forests
February 19
No seminar (organizer out-of-town)
February 26
Kevin Dilks Univ. of Minnesota Affine Descents and the Steinberg Torus
March 5
Nathan Williams Univ. of Minnesota Cyclic sieving in Young's lattice
March 12
Liping Li Univ. of Minnesota AR quivers and the Riedtmann structure theorem
March 19
No seminar- spring break
March 26
Andy Berget Univ. of California - Davis The rank partition of a matroid
April 2
Vic Reiner Univ. of Minnesota A multivariate "inv" hook formula for forests
April 9
Marcelo Aguiar Texas A & M University The Hopf monoid of generalized permutahedra
April 16
Vic Reiner Univ. of Minnesota Rational functions and valuations on cones
April 23
Vic Reiner Univ. of Minnesota Rational functions and valuations on cones (continued)
April 30
Gus Lehrer Univ. of Sydney Hodge numbers of algebraic varieties over number fields
May 7
Gus Lehrer Univ. of Sydney Reflection subgroups of affine Weyl groups
May 14
Nathan Owen Ilten Freie Universitat - Berlin Comparing Ehrhart Polynomials via T-Deformations

This page is maintained by the current seminar organizer, Vic Reiner.